/* The homepage invite rail: a right-edge button stack whose first entry opens
   the invite card. Layers sit below the player panel and dialogs. */
.zf-referral-rail {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 22;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}

.zf-referral-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 50px;
  padding: 0 15px 0 13px;
  border: 0;
  border-radius: 12px 0 0 12px;
  background: #052f29;
  color: #eafff9;
  cursor: pointer;
  box-shadow: -8px 10px 24px rgba(5, 47, 41, 0.22);
  transform: translateX(24%);
  transition: transform 220ms ease;
}

.zf-referral-btn:hover,
.zf-referral-btn:focus-visible {
  transform: translateX(0);
}

.zf-referral-icon {
  display: inline-flex;
  width: 24px;
  height: 24px;
  flex: 0 0 auto;
  color: #24caae;
}

.zf-referral-icon svg {
  width: 24px;
  height: 24px;
}

.zf-referral-label {
  max-width: 0;
  overflow: hidden;
  white-space: nowrap;
  font: 700 15px/1 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  opacity: 0;
  transition: max-width 220ms ease, opacity 160ms ease;
}

.zf-referral-btn:hover .zf-referral-label,
.zf-referral-btn:focus-visible .zf-referral-label {
  max-width: 160px;
  opacity: 1;
}

.zf-referral-backdrop {
  position: fixed;
  inset: 0;
  z-index: 24;
  background: rgba(5, 47, 41, 0.34);
}

.zf-referral-card {
  position: fixed;
  right: 64px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 26;
  width: 344px;
  padding: 18px;
  border: 1px solid rgba(5, 47, 41, 0.14);
  border-radius: 16px;
  background: #fbfcfa;
  box-shadow: 0 26px 64px rgba(5, 47, 41, 0.26);
  color: #111714;
}

.zf-referral-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin: 0 0 8px;
}

.zf-referral-head h3 {
  margin: 0;
  font: 800 18px/1.2 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  color: #052f29;
}

.zf-referral-close {
  width: 30px;
  height: 30px;
  border: 1px solid rgba(5, 47, 41, 0.18);
  border-radius: 9px;
  background: #fff;
  color: #052f29;
  font: 600 16px/1 inherit;
  cursor: pointer;
}

.zf-referral-lead {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.5;
  color: #33413b;
}

.zf-referral-rules {
  margin: 0 0 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(36, 202, 174, 0.12);
  list-style: none;
  font-size: 13px;
  line-height: 1.55;
  color: #052f29;
}

.zf-referral-rules li + li {
  margin-top: 4px;
}

.zf-referral-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border: 1px solid rgba(5, 47, 41, 0.2);
  border-radius: 10px;
  background: #fff;
  font: 600 13px/1.3 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color: #0b4b40;
  overflow: hidden;
}

.zf-referral-link-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.zf-referral-actions {
  display: flex;
  gap: 8px;
  margin: 10px 0 12px;
}

.zf-referral-actions button {
  flex: 1;
  height: 42px;
  border-radius: 10px;
  font: 700 14px/1 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  cursor: pointer;
}

.zf-referral-copy {
  border: 0;
  background: #052f29;
  color: #eafff9;
}

.zf-referral-copy.is-done {
  background: #24caae;
  color: #052f29;
}

.zf-referral-share {
  border: 1px solid rgba(5, 47, 41, 0.24);
  background: #fff;
  color: #052f29;
}

.zf-referral-stats {
  margin: 0;
  font-size: 13px;
  color: #6b7670;
}

.zf-referral-invitee {
  margin: 8px 0 0;
  font-size: 13px;
  color: #0b4b40;
}

.zf-referral-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  width: 100%;
  height: 44px;
  margin: 4px 0 10px;
  border: 1px solid rgba(5, 47, 41, 0.2);
  border-radius: 10px;
  background: #fff;
  color: #052f29;
  font: 700 14px/1 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  cursor: pointer;
}

.zf-referral-g {
  font: 800 16px/1 Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  color: #d9584b;
}

.zf-referral-note {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: #6b7670;
}

body.zf-referral-sheet {
  overflow: hidden;
}

@media (prefers-reduced-motion: reduce) {
  .zf-referral-btn,
  .zf-referral-label {
    transition: none;
  }
}

@media (max-width: 640px) {
  .zf-referral-btn {
    height: 52px;
    padding: 0 13px 0 11px;
  }

  .zf-referral-card {
    right: 0;
    left: 0;
    top: auto;
    bottom: 0;
    width: auto;
    transform: none;
    border-radius: 18px 18px 0 0;
    padding-bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  }
}